CN1174069C - Solidifying composition for prestress concrete steel bar and steel bar - Google Patents
Solidifying composition for prestress concrete steel bar and steel bar Download PDFInfo
- Publication number
- CN1174069C CN1174069C CNB011208082A CN01120808A CN1174069C CN 1174069 C CN1174069 C CN 1174069C CN B011208082 A CNB011208082 A CN B011208082A CN 01120808 A CN01120808 A CN 01120808A CN 1174069 C CN1174069 C CN 1174069C
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- CN
- China
- Prior art keywords
- curable compositions
- reinforcing bar
- prestressed concrete
- epoxy
- solidifying agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 246
- 239000004567 concrete Substances 0.000 title abstract description 35
- 229910000831 Steel Inorganic materials 0.000 title description 11
- 239000010959 steel Substances 0.000 title description 11
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 86
- 239000011513 prestressed concrete Substances 0.000 claims abstract description 52
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 23
- 239000003822 epoxy resin Substances 0.000 claims abstract description 21
- 230000003014 reinforcing effect Effects 0.000 claims description 131
- 239000004593 Epoxy Substances 0.000 claims description 51
- 238000005253 cladding Methods 0.000 claims description 50
- 229920005989 resin Polymers 0.000 claims description 40
- 239000011347 resin Substances 0.000 claims description 40
- -1 ketimine compound Chemical class 0.000 claims description 23
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 13
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 11
- 230000008719 thickening Effects 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 7
- 150000001412 amines Chemical class 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- 238000006482 condensation reaction Methods 0.000 claims description 5
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical group [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000292 calcium oxide Substances 0.000 claims description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 4
- 125000003700 epoxy group Chemical group 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- DPZSNGJNFHWQDC-ARJAWSKDSA-N (z)-2,3-diaminobut-2-enedinitrile Chemical compound N#CC(/N)=C(/N)C#N DPZSNGJNFHWQDC-ARJAWSKDSA-N 0.000 claims description 3
- 150000001728 carbonyl compounds Chemical class 0.000 claims description 3
- 229930185605 Bisphenol Natural products 0.000 claims description 2
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 2
- 239000002250 absorbent Substances 0.000 claims description 2
- 230000002745 absorbent Effects 0.000 claims description 2
- 229940042795 hydrazides for tuberculosis treatment Drugs 0.000 claims description 2
- 150000004693 imidazolium salts Chemical class 0.000 claims description 2
- 239000002808 molecular sieve Substances 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims 1
- 238000001723 curing Methods 0.000 abstract description 97
- 230000007797 corrosion Effects 0.000 abstract description 8
- 238000005260 corrosion Methods 0.000 abstract description 8
- 239000011440 grout Substances 0.000 abstract description 3
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 238000013008 moisture curing Methods 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- 210000002435 tendon Anatomy 0.000 abstract 1
- 239000000047 product Substances 0.000 description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 15
- 238000006243 chemical reaction Methods 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 9
- 239000004570 mortar (masonry) Substances 0.000 description 9
- 230000008859 change Effects 0.000 description 8
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- 229960001866 silicon dioxide Drugs 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- KUBDPQJOLOUJRM-UHFFFAOYSA-N 2-(chloromethyl)oxirane;4-[2-(4-hydroxyphenyl)propan-2-yl]phenol Chemical compound ClCC1CO1.C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 KUBDPQJOLOUJRM-UHFFFAOYSA-N 0.000 description 5
- 229910002012 Aerosil® Inorganic materials 0.000 description 5
- 229940106691 bisphenol a Drugs 0.000 description 5
- 150000002576 ketones Chemical class 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229910000754 Wrought iron Inorganic materials 0.000 description 4
- 150000001299 aldehydes Chemical class 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- 150000002118 epoxides Chemical group 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 229920000768 polyamine Polymers 0.000 description 4
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 239000000741 silica gel Substances 0.000 description 4
- 229910002027 silica gel Inorganic materials 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 2
- KWOLFJPFCHCOCG-UHFFFAOYSA-N Acetophenone Chemical compound CC(=O)C1=CC=CC=C1 KWOLFJPFCHCOCG-UHFFFAOYSA-N 0.000 description 2
- VVJKKWFAADXIJK-UHFFFAOYSA-N Allylamine Chemical compound NCC=C VVJKKWFAADXIJK-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 125000002723 alicyclic group Chemical group 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 125000003277 amino group Chemical group 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- XUCHXOAWJMEFLF-UHFFFAOYSA-N bisphenol F diglycidyl ether Chemical compound C1OC1COC(C=C1)=CC=C1CC(C=C1)=CC=C1OCC1CO1 XUCHXOAWJMEFLF-UHFFFAOYSA-N 0.000 description 2
- 230000001684 chronic effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical class C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 description 2
- XXBDWLFCJWSEKW-UHFFFAOYSA-N dimethylbenzylamine Chemical compound CN(C)CC1=CC=CC=C1 XXBDWLFCJWSEKW-UHFFFAOYSA-N 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- XNLICIUVMPYHGG-UHFFFAOYSA-N pentan-2-one Chemical compound CCCC(C)=O XNLICIUVMPYHGG-UHFFFAOYSA-N 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical compound CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 description 2
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 2
- AHDSRXYHVZECER-UHFFFAOYSA-N 2,4,6-tris[(dimethylamino)methyl]phenol Chemical compound CN(C)CC1=CC(CN(C)C)=C(O)C(CN(C)C)=C1 AHDSRXYHVZECER-UHFFFAOYSA-N 0.000 description 1
- YSUQLAYJZDEMOT-UHFFFAOYSA-N 2-(butoxymethyl)oxirane Chemical compound CCCCOCC1CO1 YSUQLAYJZDEMOT-UHFFFAOYSA-N 0.000 description 1
- NPZGWNWODZLZKY-UHFFFAOYSA-N 2-(diaminomethyl)phenol Chemical compound NC(N)C1=CC=CC=C1O NPZGWNWODZLZKY-UHFFFAOYSA-N 0.000 description 1
- HLBLWEWZXPIGSM-UHFFFAOYSA-N 4-Aminophenyl ether Chemical compound C1=CC(N)=CC=C1OC1=CC=C(N)C=C1 HLBLWEWZXPIGSM-UHFFFAOYSA-N 0.000 description 1
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 1
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 1
- CTKINSOISVBQLD-UHFFFAOYSA-N Glycidol Chemical compound OCC1CO1 CTKINSOISVBQLD-UHFFFAOYSA-N 0.000 description 1
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 1
- NSOXQYCFHDMMGV-UHFFFAOYSA-N Tetrakis(2-hydroxypropyl)ethylenediamine Chemical compound CC(O)CN(CC(C)O)CCN(CC(C)O)CC(C)O NSOXQYCFHDMMGV-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- SAIXKCDRRZNGSO-UHFFFAOYSA-N [O].OCC(O)CO Chemical compound [O].OCC(O)CO SAIXKCDRRZNGSO-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- IBVAQQYNSHJXBV-UHFFFAOYSA-N adipic acid dihydrazide Chemical compound NNC(=O)CCCCC(=O)NN IBVAQQYNSHJXBV-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- 235000019445 benzyl alcohol Nutrition 0.000 description 1
- ZHZFKLKREFECML-UHFFFAOYSA-L calcium;sulfate;hydrate Chemical compound O.[Ca+2].[O-]S([O-])(=O)=O ZHZFKLKREFECML-UHFFFAOYSA-L 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 150000001896 cresols Chemical class 0.000 description 1
- YMHQVDAATAEZLO-UHFFFAOYSA-N cyclohexane-1,1-diamine Chemical compound NC1(N)CCCCC1 YMHQVDAATAEZLO-UHFFFAOYSA-N 0.000 description 1
- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 description 1
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- BUACSMWVFUNQET-UHFFFAOYSA-H dialuminum;trisulfate;hydrate Chemical compound O.[Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O BUACSMWVFUNQET-UHFFFAOYSA-H 0.000 description 1
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- CZZYITDELCSZES-UHFFFAOYSA-N diphenylmethane Chemical compound C=1C=CC=CC=1CC1=CC=CC=C1 CZZYITDELCSZES-UHFFFAOYSA-N 0.000 description 1
- ZZTCPWRAHWXWCH-UHFFFAOYSA-N diphenylmethanediamine Chemical compound C=1C=CC=CC=1C(N)(N)C1=CC=CC=C1 ZZTCPWRAHWXWCH-UHFFFAOYSA-N 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- KYBYPDUGGWLXNO-GRVYQHKQSA-N ethane-1,2-diamine;(9z,12z)-octadeca-9,12-dienoic acid Chemical compound NCCN.CCCCC\C=C/C\C=C/CCCCCCCC(O)=O.CCCCC\C=C/C\C=C/CCCCCCCC(O)=O KYBYPDUGGWLXNO-GRVYQHKQSA-N 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 125000001183 hydrocarbyl group Chemical group 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 125000001841 imino group Chemical group [H]N=* 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 235000012204 lemonade/lime carbonate Nutrition 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003094 microcapsule Substances 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- AOHJOMMDDJHIJH-UHFFFAOYSA-N propylenediamine Chemical compound CC(N)CN AOHJOMMDDJHIJH-UHFFFAOYSA-N 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 230000009974 thixotropic effect Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/4007—Curing agents not provided for by the groups C08G59/42 - C08G59/66
- C08G59/4014—Nitrogen containing compounds
- C08G59/4042—Imines; Imides
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/82—Coating or impregnation with organic materials
- C04B41/83—Macromolecular compounds
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/015—Anti-corrosion coatings or treating compositions, e.g. containing waterglass or based on another metal
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
- Paints Or Removers (AREA)
- Epoxy Resins (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Sealing Material Composition (AREA)
- Meat, Egg Or Seafood Products (AREA)
Abstract
A curable composition for application on the surface of a tendon for prestressed concrete contains at least one epoxy resin and at least one moisture-curing type curing agent. In the curable composition, the tensioning-permitting time L at 90 DEG C is at least 20 hours, and the number of days M required to cure at normal temperature is at most 1095 days. The curable composition permits complete prevention of corrosion without relying on injection of a grout into a sheath and can be used even when the curable composition is heated to a high temperature such as is generated upon hardening of concrete.
Description
Invention field
The invention relates to the curable compositions that the reinforcing bar of prestressed concrete is used, especially about preventing reinforcement corrosion and get rusty being used to, and to have good binding characteristic between reinforcing bar and concrete be purpose, and be subjected to the curable compositions of the rebar surface of pulling force system after being used for.Also about the reinforcing bar of crust cladding for prestressed concrete, it does not need to be subjected to behind prestressed concrete the outer intracutaneous in the pulling force system to inject mortar, and combines with concrete behind the tension reinforcing bar, so can prevent corrosion fully in the present invention.
Background of invention
Prestressed concrete technology is a kind of like this technology, that is, in order exerted pressure by the place of tensile load effect to plaing in advance, will be aligned to this place in advance and strain reinforcing bar when concrete intensity reaches predetermined level such as High Tensile Steel Wire.Be subjected to the pulling force system after prestressed concrete technology comprises and be subjected to the pulling force system in advance.
After common, be subjected in the pulling force system, before placing concrete, metal crust is embedded in the concrete,, inserts in the crust as deformed bar (PC steel wire, PC wireline, PC rod iron or the like) again with reinforcing bar, after concrete hardening, reinforcing bar is strained.At last, between crust and reinforcing bar, inject mortar, preventing reinforcement corrosion, and between reinforcing bar and concrete, obtain the good binding characteristic as grout one class.Yet, in this system, be very complicated, and become the major cause that expense increases as the mortar cast work of grout one class.In addition, this system also relates to such problem, that is, cast is easy to become not exclusively, causes reinforcing bar to get rusty.
In order to solve such shortcoming, for example, among the open No.69939/1993 of Japanese Patent a kind of reinforcing bar for prestressed concrete has been proposed, set time according to the rules, ratio of mixture with regulation applies the resin that is mixed with solidifying agent on the surface of reinforcing bar, so that do not solidify before the reinforcing bar tension, but under common temperature, solidify, and begin to be cured in reinforcing bar tension back.In the example of this specification sheets, a kind of curable compositions is disclosed, the curable compositions that contains the tertiary amine solidifying agent of curing accelerator is added in the Resins, epoxy.
In the open No.11791/1996 of Japanese Patent, a kind of curable compositions is proposed, be used as the coating material of reinforcing bar for prestressed concrete, this curable compositions comprises as the Resins, epoxy of principal constituent and carries out the potentiality solidifying agent such as the Dyhard RU 100 of chemosetting at normal temperature.
According to the method for using these curable compositions, need not pour into a mould mortar, just can prevent reinforcement corrosion fully.Especially, in present method, the kind and the quantity that are applied to the solidifying agent in the Resins, epoxy (curable compositions) on the reinforcing bar can be regulated, to cause reinforcing bar before tension, not to be cured, and after the reinforcing bar tension, under common temperature, be cured, and reinforcing bar is to be tightened up after the concrete hardening He before the epoxy resin cure.At this moment, because Resins, epoxy is liquid, so suited by pulling force.After tension, Resins, epoxy solidifies at normal temperatures gradually, and last reinforcing bar combines with concrete, and reinforcing bar is not corroded fully.After using Resins, epoxy to reinforcing bar, when needs, coated surface usable resins crust coats.In this case, reinforcing bar combines with concrete by the resin crust.
Yet common curable compositions relates to following problem.Behind deposit concrete, along with curing, concrete produces heat usually.Therefore, in some cases, size and shape according to concrete member can be heated to the high temperature near 100 ℃.Common curable compositions is stable in a very long time at room temperature, and can react rapidly under near 100 ℃ high temperature.Extremely difficult control contains the prescription of the curable compositions of Resins, epoxy, so that under near 100 ℃ high temperature, be not cured, and keep solidified nature at normal temperatures.
When using curable compositions to reinforcing bar and solidify prematurely because of the heat that produced by concrete hardening, after concrete hardened, reinforcing bar can not be tightened up.On the other hand, when reducing the amount of solidifying agent and curing accelerator, can prevent that curable compositions from high temperature solidifying prematurely.Yet, extremely long in common temperature following cure period.Therefore, be that applicable place and purpose are restricted by a problem using the technology that is subjected to the pulling force system behind common curable compositions for prestressed concrete to relate to.
Purpose of the present invention and summary
An object of the present invention is to provide the curable compositions that a kind of reinforcing bar of prestressed concrete is used, this curable compositions can prevent that fully reinforcing bar is corroded, and outwards intracutaneous is poured into a mould mortar, even when being heated to high temperature with the heat of concrete hardening generation, also can use.
Another object of the present invention provides the reinforcing bar that a kind of crust for prestressed concrete covers, and it need not be subjected to the outer intracutaneous in the pulling force system to inject mortar behind prestressed concrete, and combines with concrete behind the tension reinforcing bar and can prevent corrosion fully.
Present inventors have carried out extensive studies in order to obtain above-mentioned purpose.Found that, at least the curable compositions that contains Resins, epoxy and wet type curing solidifying agent is applicable to the reinforcing bar of prestressed concrete, wherein solidifies necessary fate and satisfy corresponding particular kind of relationship under time that allows to be subjected to pulling force under 90 ℃ and the typical temperature at curable compositions.
When said curable compositions is applied to rebar surface, according to after be subjected to the pulling force system, employed reinforcing bar in the technology of prestressed concrete, even curable compositions can not solidify prematurely yet when the heat that produces because of concrete hardening was heated to high temperature, cause the tension of reinforcing bar to suit.In addition, after typical temperature curable composition was cured reaction, thus, reinforcing bar directly or by crust combined with concrete.Cause finishing the present invention according to these discoveries.
According to the present invention, a kind of curable compositions of reinforcing bar of prestressed concrete is provided, this curable compositions is applied to the rebar surface of prestressed concrete, described curable compositions comprises the solidifying agent of Resins, epoxy and wet type curing at least, wherein, the pulling force that is subjected under 90 ℃ allows time L, it is to represent with following required time, promptly, when curable compositions remains on 90 ℃, under the environment of 60% relative humidity, when measuring down for 25 ℃, the needed time when the viscosity of curable compositions reaches 10000 pools, and under typical temperature, solidify needed fate M, it is to represent with following needed fate, that is, the hardness according to JIS K 7215 canonical measure curable compositions reaches 60 the needed fate of D type hardness tester meter hardness under 25 ℃ when curable compositions remains on.The above-mentioned pulling force that is subjected to allows time L and the required fate M of curing should satisfy the corresponding relation of being represented by following formula (1) and (2):
L (hour) 〉=20 (1)
M (fate)≤1095 (2)
A kind of reinforcing bar with crust cladding for prestressed concrete of following structure also is provided according to the present invention, promptly, curable compositions is applied to the rebar surface of prestressed concrete, its coated side clads with crust, wherein, curable compositions comprises the solidifying agent of Resins, epoxy and wet type curing at least.Wherein under 90 ℃, be subjected to pulling force to allow time L, it is with following needed time representation, that is, when curing composition remain on 90 ℃, under the environment of 60% relative humidity, the needed time when 25 ℃ of viscosity of measuring down curable compositions reach 10000 pools.Solidifying needed fate M under typical temperature represents with following needed fate, promptly, the hardness according to JISK7215 canonical measure curable compositions reaches 60 the needed fate of D type hardness tester meter hardness under 25 ℃ when curable compositions remains on, and is subjected to the time L of pulling force permission and solidifies the corresponding relation that needed fate M should satisfy following formula (1) and (2) expression:
L (hour) 〉=20 (1)
M (fate)≤1095 (2)
The accompanying drawing summary
Fig. 1 utilizes graphics explanation to be incorporated into the umber X (phr) of the wet type curing solidifying agent in the 100 weight part Resins, epoxy and is subjected to pulling force to allow relation between the time L.
Fig. 2 utilizes the graphics explanation to be incorporated into the umber X (phr) of the wet type curing solidifying agent in the 100 weight part Resins, epoxy and the relation between the following required fate M of curing of normal temperature.
The detailed description of invention
According to the present invention, the main component of curable compositions is epoxy resin. Epoxy resin is not had by force particular determination, and the example comprises diglycidyl ethers of bisphenol-A, Bisphenol F diglycidyl ether, novolaks glycidol ether and Fourth Ring oxygen glycerine MDA. These epoxy resin can use separately, but also any combination is used. Epoxy resin is preferably at 25 ℃ of lower liquid epoxies with maximum 1000 pool viscosity of measuring.
In these epoxy resin, best is cheap diglycidyl ethers of bisphenol-A, that is, and and the bisphenol A type epoxy resin that represents with following formula:
Be convenient to be subjected to the low viscous Bisphenol F diglycidyl ether of having of pulling force, that is, and the bisphenol f type epoxy resin that represents with following formula:
In this structural formula, n represents the degree of polymerization. Generally, the preferred liquid epoxies with degree of polymerization (n) of 0 or about 0.1 that uses. These epoxy resin can use separately, but also any combination is used.
The curing agent that used wet type curing type curing agent refers to have following function among the present invention, that is, the reaction of moisture that exists in it and the air forms a kind of curing agent as product, has begun thus the curing reaction of epoxy resin. Compound with this function comprises ketimine compound. The preferred ketimine compound that uses among the present invention. The compound of the structure that the oxygen that ketimide refers to have carbonyl in a kind of ketone is replaced by imino group.
Used ketimine compound is to have a primary amino radical at least by amines that carbonyls sealed in its molecule among the present invention. The primary amino radical group that is sealed by carbonyls is a kind of amino group of protectiveness, this amino group have water in the presence of be easy to be hydrolyzed and be transformed into free primary amino radical group, basically can be represented by the formula:
P9
Wherein, R
1And R
2Represent hydrogen atom or hydrocarbyl group respectively, as alkyl, cyclohexyl or aromatic yl group.
Amine compound can be aliphatic arbitrarily, alicyclic and aromatic amine compound.The specific examples of amine compound comprises aliphatic polyamine, as mono aminoethane, quadrol, propylene diamine, alcoxyl propylamine and allylamine; The aromatic series polyamine is as diaminodiphenyl-methane and diamino-diphenyl ether; Alicyclic polyamine is as diamino-cyclohexane; And the polyamine that on their molecular chain terminal, has a primary amino group at least.
Amine compound is transformed into the used carbonyl compound of ketoimine comprises ketone and aldehyde, its specific examples comprises ketone, as acetone, methylethylketone, methyl propyl ketone, mibk, pimelinketone, phenyl methyl ketone and benzophenone; Aldehydes is as acetaldehyde and phenyl aldehyde.
Used ketimine compound among the present invention is that the dehydration-condensation reaction by amine compound and carbonyl compound obtains.This dehydration-condensation reaction can be carried out under the condition identical with the common dehydration-condensation reaction condition of amine and aldehydes or ketones.Particularly, for example, amine compound is mixed with the ketone or the aldehyde of the theoretical reacting weight that is not less than amine compound, dewater-condensation reaction, reagent is reacted each other, remove the formed water of reaction simultaneously.
According to the present invention, curable compositions allows time L will satisfy relevant expression (1) and (2) with the necessary fate M of curing under typical temperature at the pulling force that is subjected under 90 ℃.This specific character is mixed the ratio of wet type curing solidifying agent by control and can be obtained basically.Except in curable compositions, mixing wet type curing solidifying agent,, also can mix potentiality solidifying agent, curing accelerator as solidifying auxiliary; Or the like, also can obtain above-mentioned characteristic.
Do not make particular determination for potentiality solidifying agent used among the present invention.Yet the example comprises Dyhard RU 100, as Dyhard RU 100 and its derivative; Two hydrazides are as adipic dihydrazide; Amine adduct; Diaminomaleonitrile is as Diaminomaleonitrile and its derivative with by solidifying agent (for example fatty amine, cycloaliphatic amines or aromatic amine) is packaged into the microcapsule that obtain in the film.
There is not particular determination for curing accelerator used among the present invention.Yet the example comprises tertiary amine compound, as 2,4, and 6-three (diamino methyl) phenol (being abbreviated as " DMP-30 ") and benzyl dimethyl amine (being abbreviated as " BDMA "), imidazolium compounds, and BF
3Complex compound.
According to the present invention, if necessary, except mentioned component can also mix thinner, weighting agent, thickening material etc. in curable compositions.The fusion thinner is to regulate the viscosity of curing composition.When reducing the viscosity of curable compositions, be easy to be subjected to pulling force by the interpolation thinner.As thinner, for example can use reactive diluent, as n-butylglycidyl ether, benzyl alcohol, phthalic ester, or the like.The fusion weighting agent is to be reduction expense and control thixotropic behavior, and the example comprises lime carbonate, talcum powder and silicon-dioxide.The fusion thickening material is in order to the viscosity that increases curable compositions or prevents precipitation or prevent powders that as Dyhard RU 100, the example comprises the silicon-dioxide fine particle, as the high dispersion silica gel that can buy on the market.Added ingredients as thinner, weighting agent and thickening material, can use with each appropriate amount according to purposes.For example, count the 0.1-15 weight part with 100 parts by weight of epoxy resin, preferred 0.5-10 weight part, more preferably 1-5 weight part as the ratio of mixing of the fine grain thickening material of silicon-dioxide.
When not using crust, perhaps the heat that is produced during concrete curing when using crust is very big, and in some cases, moisture content contained in the uncured concrete can directly infiltrate or enter in the curable compositions by crust.When rainy season or the work of rainy district, curable compositions can absorb a large amount of moisture content.In this case, curing reaction quickens because of the moisture content that infiltrates, so that there is a kind of possibility, is exactly to obtain desired curing performance.Tackle measure as it, a kind of method is arranged, wherein mix dewatering agent in advance, can prevent the acceleration of curing reaction thus in dewatering agent, to absorb excess water.
The dewatering agent example comprises calcium oxide, water absorbent polymer, molecular sieve, silane coupling agent and their mixture.Wherein, consider that from expense and water absorbing properties best is calcium oxide.There is not by force particular determination for the dewatering agent ratio of mixing.When the fusion dewatering agent, in 100 weight part Resins, epoxy, preferred ratio is the 0.1-200 weight part, more preferably the 0.3-100 weight part.In many cases, when mix proportions mostly is 50 weight parts most, can obtain good result.If the mix proportions of dewatering agent is too low, then in some cases, can not obtain dehydrating effect effectively.If ratio is too high, the viscosity that then can make curable compositions is too high and cause a kind of possibility that is difficult to be subjected to pulling force.
In using the structure of crust, by using the low resin of water permeate, and can improve the problems referred to above as the material that forms crust.The low resin of water permeate is not had by force particular determination, and the example comprises vinyl chloride resin, ethylene-vinyl alcohol copolymer and versamid 900.
With above-mentioned opposite, when may moisture content when using curable compositions lacking, before construction, mix hydrate in advance curable compositions being heated to 80-150 ℃ in the arid region, thereby, disengage moisture content by hydrate, lack moisture content to prevent solidified.The example of this hydrate comprises aluminum sulfate hydrate and calcium sulfate hydrate.If necessary, these hydrates use so that the necessary mix proportions of moisture content to be provided.
When using ketimine compound, by adding the curing speed that alcohol, phenol or their mixture can quicken curing composition as wet type curing solidifying agent.Under typical temperature, utilize the effect of the improvement curing speed of alcohol and/or phenol to be greater than at high temperature effect.Therefore, when preparing curable compositions in such a way, that is, make when be equal to each other by the pulling force permission time, the curable compositions that contains alcohol and/or phenol solidifies needed fate and will be less than the curing composition that does not contain these compounds.
Do not have by force particular determination for alcohol and/or phenol, embodiment comprises alcohols, as methyl alcohol, ethanol, Virahol and hexalin; Phenols is as benzyl alcohol, phenol, cresols and Resorcinol.Wherein, best is benzyl alcohol, and it does not solidify at low temperatures, is difficult to volatilization when storing.The ratio of fusion alcohol and/or phenol there is not by force particular determination, yet, in 100 weight part Resins, epoxy, be generally the 0.1-30 weight part.If the mix proportions of alcohol and/or phenol is too low, then in some cases, can not fully reach the improvement effect of curing characteristics.If ratio is too high, the viscosity of gained curable compositions can reduce greatly, and when it is applied to reinforcing bar, during as deformed bar, in some cases, such composition may hang from above.
A kind of technology is disclosed in the open No.11791/1996 of Japanese Patent, in Resins, epoxy, add the potentiality solidifying agent, as Dyhard RU 100, and curing accelerator, can adjust so that before reinforcing bar tension, not be cured, because it is stable at room temperature long-time.Yet this resin is as common solidifying agent, approaching can promptly to be cured reaction under 100 ℃ the high temperature.When the amount of solidifying agent that is added and curing accelerator reduces, also can reduce the reaction under the high temperature.Yet curing can become very low under common temperature, needs long time to make reinforcing bar in conjunction with concrete.
On the other hand, can be cured in (1095 days) in 3 years according to curable compositions of the present invention, by using wet type curing solidifying agent, because of moisture content begins to solidify at normal temperatures, it usually is some months to 3 year, and can keep not solid state in during required, even under near 100 ℃ high temperature, can not react rapidly yet.Wet type curing solidifying agent generally is used for pigment or coating.The known Resins, epoxy that contains wet type curing solidifying agent is when it is to apply thinly and when being exposed in the air, typical temperature curable several hours to several days.
On the other hand, present inventors find to be suitable for the good curing characteristics of use at present, and this is can not be obtainable by disclosed common curable compositions among the open No.11791/1996 of Japanese Patent.This good curing characteristics is by using wet type curing solidifying agent and by mix proportions control curing performance, with and obtain with being used in combination of dewatering agent or the like measure.Curing characteristics is different from the curing characteristics that prescription produced of ordinary epoxy resin used in classes such as pigment/wet type curing solidifying agent fully.Consider from the various effects of effective demonstration aspect, according to the present invention, preferably at reinforcing bar, as using curable compositions in the closed system between deformed bar and the resin crust.
The chemical equivalent of curing reaction and reactive type and wet type curing solidifying agent according to Resins, epoxy change as the type of ketimine compound.Therefore, the preferred amounts of the wet type curing solidifying agent of Resins, epoxy and fusion can change according to its type.Yet mix proportions and type by gate ring epoxy resins and wet type curing solidifying agent can produce following characteristic, thus, can provide to be applicable to what the present invention used, have the curable compositions of good curing performance.
More specifically,, allow to solidify under time L and the normal temperature needed fate M, must satisfy following expression (1) and (2) represented corresponding relation at the pulling force that is subjected under 90 ℃ according to curable compositions of the present invention:
L (hour) 〉=20 (1)
M (fate)≤1095 (2)
Reached for 10000 needed times when mooring (ps) being subjected to pulling force to allow time L to be meant when curable compositions is placed under 90 ℃ 25 ℃ of viscosity of measuring curable compositions down in 90 ℃, the environment of 60% relative humidity.Particularly, by making curable compositions in 90 ℃, the environment of 60% relative humidity, keep specific time can obtain the viscosity of curing composition, and with a kind of like this state, promptly, curable compositions is filled between reinforcing bar and the crust, and make curable compositions take out crust, obtain the viscosity of curable compositions to measure its viscosity.
Solidify needed fate M at normal temperatures and be meant needed fate when when placing down for 25 ℃, reaching 60 according to the D type hardness tester meter hardness of JIS K7215 standard test curable compositions for curing composition.Specifically curable compositions is controlled at the fate of the indoor maintenance regulation of 25 ℃ (relative humidity about 50%), and with a kind of like this situation, that is, curable compositions is filled between reinforcing bar and the crust, the hardness of measuring curable compositions then can obtain to solidify needed fate M.Hardness is according to the JISK7215 standard test.When the D of curable compositions type hardness tester meter hardness (hereinafter mainly being called " D type hardness tester meter hardness ") is 60 or when higher, curable compositions is counted as having cured.
Be subjected to pulling force to allow time L and solidify required fate M and can utilize wet type curing solidifying agent and potentiality solidifying agent and/or curing accelerator to control by combination.
Be subjected to pulling force to allow time L preferably at least 20 hours (L 〉=20), more preferably at least 50 hours (L 〉=50), preferably at least 100 hours (L 〉=100).Solidify required fate M preferably 1095 days (M≤1095,3 year or shorter) at the most, more preferably 912 days (M≤912 at the most; 2.5 year or shorter), preferably 730 days (M≤730,2 year or shorter) at the most.
If be subjected to pulling force to allow time L to be less than 20 hours, then, at high temperature can quicken curing reaction as the common use Dyhard RU 100 or the prescription of similar composition, size or shape according to concrete member can not be subjected to pulling force after the concrete hardening.In using the reinforcing bar of prestressed concrete, in fact after construction, need quite long during when presenting performance, use and become very difficult in fact.Therefore, require to solidify in the curable compositions 2 years at normal temperatures, curable compositions must the longlyest solidify in 3 years.Therefore, any curable compositions its solidify required fate M surpass 1095 days all be unfavorable for this use.
The method of controlling above-mentioned L and M value will adopt following situation to be described.For example, curable compositions contains the bisphenol A type epoxy resin " Epikote 828 " (product of Yuka Shell EpoxyKabushikikaisha) of 100 weight parts, the wet type curing solidifying agent " Epicure H3 " (product of YukaShell Epoxy Kabushikikaisha) of 3 weight parts and the thickening material " Aerosil RY200S " (product of Nippon Aerosil Co.Ltd.) of 3 weight parts.The relation of the mix proportions (phr) between L value or M value and the wet type curing solidifying agent " EpicureH3 " is as illustrated among Fig. 1 and 2.
Be understood that from the experimental data shown in Fig. 1 and 2, for 100 weight part Resins, epoxy, the mix proportions of wet type curing solidifying agent need be controlled at 1-16.5 weight part (phr), be preferably the 1.25-11.2 weight part, more preferably the 1.5-7.2 weight part is adding in above-mentioned curable compositions under the situation of alcohol and/or phenol, for 100 parts by weight of epoxy resin, the mix proportions of wet type curing solidifying agent can reduce to and be preferably 0.3-13 weight part (phr), more preferably 1-10 weight part.
The equivalent umber of the wet type curing solidifying agent that mixes in above prescription is that per 100 parts by weight of epoxy resin are 54 weight parts (phr).Therefore, the ratio that is appreciated that the wet type curing solidifying agent of fusion among the present invention is in the specified range that is controlled at less than the equivalent ratio of fusion, thus, can obtain to be suitable for the good curing characteristics that the present invention uses.Even when Resins, epoxy and wet type curing solidifying agent use with other ratios rather than with above-mentioned prescription, as long as its equivalents is controlled in the above-mentioned mixed ratio limited range, just can obtain with above-mentioned identical curing characteristics.
To the scope of mixing the corresponding equivalents of wet type curing solidifying agent ratio is that ratio (P) with the weight part that mixes wet type curing solidifying agent and the equivalent part of mixing is expressed as 0.019≤P≤0.31, more preferably 0.023≤P≤0.21 is preferably 0.028≤P≤0.13.When adding alcohol and/or phenol, this scope, preferably 0.0056≤P≤0.24, more preferably 0.023≤P≤0.19.
Be subjected to pulling force to allow time and the needed fate of curing by being used in combination wet type curing solidifying agent and potentiality solidifying agent and/or curing accelerator, also can controlling.For the weight epoxy that contains the heavy epoxide group of 1g equivalent, the blended amount with the potentiality solidifying agent that uses among the present invention generally is controlled at maximum 10g, and preferably 6g at the most is just very effective.If the blended amount of potentiality solidifying agent is too big, curing reaction also can be too fast, so that in some cases, after concrete had hardened, reinforcing bar also was not tightened up.For the weight epoxy that contains the heavy epoxide group of 1g equivalent, the blended amount with the curing accelerator that uses among the present invention generally is controlled at maximum 1g, and preferably 0.5g at the most is just very effective.If the blended amount of curing accelerator is too big, then curing reaction also can be too fast, so that in some cases, after concrete had hardened, reinforcing bar also was not tightened up.Contain the weight of the Resins, epoxy of the heavy epoxide group of 1g equivalent, the meaning is that for example, under the situation of Resins, epoxy 189g, the epoxy equivalent (weight) of its Resins, epoxy is 189g/eq.
Among the present invention, coating thickness when being applied to reinforcing bar for curable compositions and form do not have particular determination by force.Yet, when film thickness is extremely thin, for example, when producing, promptly according to such system, curing composition is applied to reinforcing bar, and its coated surface coats with crust, the per unit curing composition in use, absorb moisture content quantitative change get very big, so that in some cases, it is very high that the curing speed of curing composition also can become.Therefore, the mean thickness of coat is controlled at 0.1mm at least, preferably at least during 0.3mm, just effectively.According to the shape and the size of reinforcing bar, desired curing characteristics etc. can suitably be determined the upper limit of coat mean thickness.Yet,, preferably at the most during 3mm, can obtain good effect as upper limit 5mm at the most.
Among the present invention, can use deformed bar (PC steel wire, PC steel cable, PC rod iron or the like) or its similar reinforcing bar as reinforcing bar.Deformed bar is being known in the art.For example, the PC steel wire is meant " a kind of steel wire of uncoated stress relieving for prestressed concrete ".The PC steel cable is meant " a kind of steel cable of uncoated stress relieving for prestressed concrete ".And the PC rod iron is meant " a kind of rod iron for prestressed concrete ".
Among the present invention, reinforcing bar preferably is equipped with crust.More specifically, the reinforcing bar of the crust cladding for prestressed concrete of structure is that curable compositions is applied to rebar surface for prestressed concrete, and its coated surface preferably clads with crust.In the present invention, for example can use synthetic resins,, perhaps use metal,, form crust as ordinary steel as polyethylene.When forming crust with synthetic resins, curable compositions is applied on the rebar surface, then, synthetic resins is squeezed on its coated surface, form crust thus.
Do not make by force particular determination for the form of crust.Yet the example comprises crust and a kind of crust that forms groove part and convex part in its outside with corrugated or spirrillum of picture tube shape.By applying rebar surface, with crust its sealing can be improved the curing stability of curable compositions again with curable compositions.According to the present invention, the reinforcing bar of crust cladding for prestressed concrete is to be filled with the form of curable compositions between reinforcing bar and crust.
Below with reference to embodiment and comparative example the present invention is described in more detail.Measure various performances and characteristic according to following relevant method.
Be subjected to pulling force to allow time L under (1) 90 ℃:
Apply reinforcing bar with the test curable compositions, and clad with crust, in 90 ℃, the environment of 60% relative humidity, place the period of regulation, peel off crust, take out the curable compositions sample, by means of the viscoelastic analyzer MR-300 that K.K.Rheologe makes, under 25 ℃, measure the viscosity of curable compositions.Use parallel plate, under the strained condition of the frequency of the gap of 0.33mm, 5Hz and 1 °, measure.The needed time when determining that by income value the viscosity of curable compositions under 25 ℃ reaches 10000 pools.
(2) under steam, be subjected under 90 ℃ pulling force to allow time L ':
Consider such fact, that is, and under actual user mode, the reinforcing bar of crust cladding is exposed in the moisture content of green concrete, in 90 ℃ steam ambient, be subjected to pulling force to allow the time to measure reinforcing bar with above-mentioned (1) identical mode, this time is regarded as be subjected to pulling force to allow time L '.
(3) solidify necessary fate M at normal temperatures:
To peel off by the crust of the reinforcing bar sample of the crust cladding of preservation specified time under 25 ℃, the affirmation that is cured is to measure the hardness of curable compositions.According to the canonical measure hardness of JIS K 7215, when the D of curable compositions type hardness tester meter hardness is 60 or when higher, curable compositions is counted as having cured.
(4) comprehensive evaluation
Under 90 ℃, be subjected to pulling force to allow to be subjected to pulling force to allow time L ' and normal temperature to solidify needed fate M down under time L, 90 ℃ of steam, take all factors into consideration,, estimate the performance or the feature of each curable compositions sample according to following 4 grades:
◎: good especially
Zero: good
△: good and
*: defective
According to each composition in the prescription shown in the table 1, use ketoimine type solidifying agent Epicure H3 (product of YukaShell Epoxy Kabushikikaisha) as wet type curing solidifying agent, it is mixed to stir obtaining curable compositions.The gained curable compositions is applied to the PC steel cable.On the surface of its coating, utilize high density polyethylene(HDPE) " Hizex ", form polyethylene sheath (product of Mitsui KagakuCo.Ltd) by extruding.And then, by surface treatment, on crust, form a large amount of groove part and convex part.Thickness at the curing composition of each convex part and groove part is respectively 1-3mm and 0.3-0.5mm.
About the reinforcing bar of the crust of such acquisition cladding, measure and be subjected to pulling force to allow time L under its 90 ℃, be subjected to pulling force to allow time L ' and normal temperature to solidify the fate M that needs down under 90 ℃ of steam.As a result, prove that curable compositions is subjected to pulling force to allow the time quite long under 90 ℃, in 1 year, be cured under the normal temperature, and make the reinforcing bar that uses this composition to make the crust cladding.It the results are shown in table 1.
Embodiment 2
Except the prescription according to the change curable compositions shown in the table 1, other are according to preparing the reinforcing bar of curable compositions and crust cladding with embodiment 1 identical mode, and estimate.As a result, prove that this curable compositions is subjected to the pulling force permission time long under 90 ℃, be cured in the normal temperature next year, and make the reinforcing bar of the crust cladding of using this composition.
Except according to the prescription that changes curable compositions shown in the table 1, other are according to preparing the reinforcing bar of curable compositions and crust cladding with embodiment 1 identical mode, and estimate.As a result, confirm that the be subjected to pulling force of curable compositions under 90 ℃ allows the time quite long, is cured in the normal temperature next year, and makes the reinforcing bar of the crust cladding of using this composition.
Embodiment 4
Except according to the prescription that changes curable compositions shown in the table 1, other are according to preparing the reinforcing bar of curable compositions and crust cladding with embodiment 1 identical mode, and estimate.As a result, confirm that curable compositions is subjected to pulling force to allow the time quite long under 90 ℃, be cured in the normal temperature next year, and make the reinforcing bar of the crust cladding of using this composition.
Except according to the prescription that changes curable compositions shown in the table 1, other are according to preparing the reinforcing bar of curable compositions and crust cladding with embodiment 1 identical mode, and estimate.As a result, confirm that curable compositions is subjected to pulling force to allow the time quite long under 90 ℃, be cured in the normal temperature next year, and make the reinforcing bar of the crust cladding of using this composition.
Embodiment 6
Except according to the prescription that changes curable compositions shown in the table 1, other are according to preparing the reinforcing bar of curable compositions and crust cladding with embodiment 1 identical mode, and estimate.As a result, compole was long when the affirmation curable compositions was allowed by pulling force under 90 ℃, and normal temperature is cured in following 2 years, and made the reinforcing bar of the crust cladding of using this composition.
Embodiment 7
Except according to the prescription that changes curable compositions shown in the table 1, other are according to preparing the reinforcing bar of curable compositions and crust cladding with embodiment 1 identical mode, and estimate.As a result, confirm that the be subjected to pulling force of curable compositions under 90 ℃ allows the time quite long, normal temperature is cured in following 2.5 years, and makes the reinforcing bar of the crust cladding of using this composition.
Embodiment 8
Except according to the prescription that changes curable compositions shown in the table 1, other are according to preparing the reinforcing bar of curable compositions and crust cladding with embodiment 1 identical mode, and estimate.As a result, confirm that the be subjected to pulling force of curable compositions under 90 ℃ allows the time quite long, normal temperature is cured in following 3 years, and makes the reinforcing bar of the crust cladding of using this composition.
Table 1
| | Embodiment 2 | | Embodiment 4 | | Embodiment 6 | Embodiment 7 | Embodiment 8 | |
| | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| | 15 | 10 | 5 | 4 | 3 | 2 | 1.5 | 1 |
| HT2844 *3 | - | - | - | - | - | - | - | - |
| Dyhard RU 100 *4 | - | - | - | - | - | - | - | - |
| Epicure 3010 *5 | - | - | - | - | - | - | - | - |
| High | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Be subjected to pulling force to allow time L (hrs) in the time of 90 ℃ | 22 | 62 | 170 | 200 | 270 | 410 | 520 | 700 |
| Be subjected to pulling force to allow time L (hrs) during following 90 ℃ of steam | 8 | 21 | 53 | 71 | 86 | 141 | 177 | 230 |
| Solidify required fate M (my god) | 45 | 63 | 127 | 195 | 290 | 585 | 820 | 1077 |
| Comprehensive evaluation | △ | △ | ○ | ○ | ○ | ◎ | ○ | △ |
(note)
*1: the bisphenol A type epoxy resin (product of Yuka Shell Epoxy Kabushikikaisha; N=0.1, epoxy equivalent (weight)=189g/eq).
*2: ketoimine type wet type curing solidifying agent (product of Yuka Shell Epoxy Kabushikikaisha).
*3: potentiality solidifying agent (product of Asahi-CIBA Limited).
*4: potentiality solidifying agent (Nippon Carbide Industries Co.Ltd.).
*5: curing accelerator (product of Yuka Shell Epoxy Kabushikikaisha).
*6: thickening material (product of Nippon Aerosil Co.Ltd.).
Embodiment 9
Except prescription according to the curable compositions of change shown in the table 2, be used in combination outside wet type curing solidifying agent Epicure H3 and the curing accelerator Epicure 3010, other are according to preparing the reinforcing bar of curable compositions and crust cladding with embodiment 1 identical mode, and estimate.As a result, it is chronic to confirm that curable compositions is allowed by pulling force under 90 ℃, and normal temperature is cured in following 1 year, and makes the reinforcing bar of the crust cladding of using this composition.
Except prescription according to the curable compositions of change shown in the table 2, be used in combination outside wet type curing solidifying agent Epicure H3 and the potentiality solidifying agent HT 2844, other are according to preparing the reinforcing bar of curable compositions and crust cladding with embodiment 1 identical mode, and estimate.As a result, it is chronic to confirm that curable compositions is allowed by pulling force under 90 ℃, and normal temperature is cured in following 1 year, and makes the reinforcing bar of the crust cladding of using this composition.
Embodiment 11
Except according to shown in the table 2, change the prescription of curable compositions, be used in combination outside wet type curing solidifying agent Epicure H3 and the curing accelerator Epicure 3010, other are according to preparing the reinforcing bar of curable compositions and crust cladding with embodiment 1 identical mode, and estimate.As a result, confirm that the be subjected to pulling force of curable compositions under 90 ℃ allows the time quite long, is cured in the normal temperature next year, and makes the reinforcing bar of the crust cladding of using this composition.
Embodiment 12
Except according to the prescription that changes curable compositions shown in the table 2, according to preparing the reinforcing bar of curable compositions and crust cladding, and estimate with embodiment 1 identical mode.As a result, confirm that the be subjected to pulling force of curable compositions under 90 ℃ allows the time quite long, even in steam, be subjected to pulling force to allow the time not reduce, normal temperature is cured in following 1 year, and makes the reinforcing bar of the crust cladding of using this composition.
Embodiment 13
Except according to the prescription that changes curable compositions shown in the table 2, according to preparing the reinforcing bar of curable compositions and crust cladding, and estimate with embodiment 1 identical mode.As a result, confirm that curable compositions is subjected to pulling force to allow the time quite long under 90 ℃, even under steam, be subjected to pulling force to allow the time also not reduce, normal temperature is cured in following 1 year, and makes the reinforcing bar of the crust cladding of using this composition.
Embodiment 14
Except according to the composition that changes curable compositions shown in the table 2, other are according to preparing the reinforcing bar of curable compositions and crust cladding with embodiment 1 identical mode, and estimate.As a result, confirm that the be subjected to pulling force of curable compositions under 90 ℃ allows the time quite long,, and make the crust cladding reinforcing bar that uses this composition even the pulling force that is subjected in steam allows the time also not reduce.
Except according to the prescription that changes curable compositions shown in the table 2, other are according to preparing the reinforcing bar of curable compositions and crust cladding with embodiment 1 identical mode, and estimate.As a result, confirm that curable compositions is subjected to pulling force to allow the time quite long under 90 ℃, even be subjected to pulling force to allow the time also not reduce in steam, normal temperature is cured in following 2 years, and makes the reinforcing bar of the crust cladding of using this composition.
Embodiment 16
Except according to the prescription that changes curable compositions shown in the table 2, other are according to preparing the reinforcing bar of curable compositions and crust cladding with embodiment 1 identical mode, and estimate.As a result, confirm that curable compositions is subjected to pulling force to allow the time quite long under 90 ℃, normal temperature is cured in following 1 year, and makes the reinforcing bar of the crust cladding of using this composition.
Embodiment 17
Except according to the prescription that changes curable compositions shown in the table 2, other are according to preparing the reinforcing bar of curable compositions and crust cladding with embodiment 1 same way as, and estimate.As a result, confirm that the be subjected to pulling force of curable compositions under 90 ℃ allows the time quite long, even be subjected to pulling force to allow the time also not reduce in steam, normal temperature is cured in following 1 year, and makes the reinforcing bar of the crust cladding of using this composition.
Embodiment 18
Except according to the prescription that changes curable compositions shown in the table 2, other are according to preparing the reinforcing bar of curable compositions and crust cladding with embodiment 1 identical mode, and estimate.As a result, confirm that the be subjected to pulling force of curable compositions under 90 ℃ allows the time quite long, even be subjected to pulling force to allow the time also not reduce in steam, normal temperature is cured in following 1 year, and makes the reinforcing bar of the crust cladding of using this composition.
Table 2
| Embodiment 9 | | Embodiment 11 | Embodiment 12 | Embodiment 13 | Embodiment 14 | | Embodiment 16 | Embodiment 17 | Embodiment 18 | |
| | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| | 5 | 2 | 2 | 3 | 3 | 4 | 2 | 3 | 2 | 2 |
| HT2844 *3 | - | 2(3.8 *7) | - | - | - | - | - | - | - | - |
| Dyhard RU 100 *4 | - | - | - | - | - | - | - | - | - | - |
| Epicure 3010 *5 | 0.05(0.095 *7) | - | 0.05(0.095 *7) | - | - | - | - | - | - | - |
| High | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Calcium oxide | - | - | - | 5 | 30 | 5 | 5 | 0.3 | 5 | 5 |
| Benzyl alcohol | - | - | - | - | - | - | - | - | 7 | 3 |
| Be subjected to pulling force to allow time L (hrs) under 90 ℃ | 64 | 21 | 103 | 278 | 247 | 206 | 418 | 274 | 242 | 258 |
| Steam is subjected to pulling force to allow time L (hrs) for following 90 ℃ | 22 | 9 | 32 | 275 | 247 | 203 | 414 | 95 | 240 | 255 |
| Solidify required fate M (my god) | 75 | 183 | 225 | 295 | 310 | 202 | 588 | 290 | 182 | 352 |
| Comprehensive evaluation | △ | △ | ○ | ◎ | ◎ | ◎ | ◎ | ○ | ◎ | ◎ |
(notes)
*1: Resins, epoxy (product of Yuka Shell Epoxy Kabushikikaisha)
*2: ketoimine type wet type curing solidifying agent (product of Yuka Shell Epoxy Kabushikikaisha)
*3: potentiality solidifying agent (product of Asahi-CIBA Limited)
*4: potentiality solidifying agent (product of Nippon Carbide Industries Co.Ltd.)
*5: curing accelerator (product of Yuka Shell Epoxy Kabushikikaisha)
*6: thickening material (product of Nippon Aerosil Co.Ltd.)
*7: add the amount among the Epikote 828 (189g) that contains the heavy epoxide group of 1g equivalent to.
Comparative example 1
Except according to the prescription that changes curable compositions shown in the table 3, other are according to preparing the reinforcing bar of curable compositions and crust cladding with embodiment 1 identical mode, and estimate.As a result, confirm curable compositions 90 ℃ under allowed by pulling force the time compole short, a large amount of places that produce heat in the time of can not being applied to concrete hardening, and make the reinforcing bar that the crust with this composition clads.
Comparative example 2
Except according to the prescription that changes curable compositions shown in the table 3, other are according to preparing the reinforcing bar of curable compositions and crust cladding with embodiment 1 identical mode, and estimate.As a result, confirm that the be subjected to pulling force of curable compositions under 90 ℃ allows the time very short, produces the places of heat in a large number, and makes the reinforcing bar with the crust cladding of this composition in the time of can not being applied to concrete hardening.
Comparative example 3
Except according to the prescription that changes curable compositions shown in the table 3, other are according to preparing the reinforcing bar of curable compositions and crust cladding with embodiment 1 identical mode, and estimate.As a result, confirm that the required at normal temperatures solidified fate of curable compositions surpasses 3 years, and consider, be difficult to practical application, and make reinforcing bar with the crust cladding of this composition with regard to aspects such as work.
Comparative example 4
Except prescription according to the curable compositions of change shown in the table 3, do not use wet type curing solidifying agent, but use outside the potentiality curing agent dicyandiamide, other are according to preparing the reinforcing bar of curable compositions and crust cladding with embodiment 1 identical mode, and estimate.As a result, confirm curable compositions 90 ℃ under allowed by pulling force the time compole short, a large amount of places that produce heat in the time of can not being applied to concrete hardening, and make the reinforcing bar that the crust with this composition clads.
Table 3
| Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | |
| | 100 | 100 | 100 | 100 |
| Epicure H3 *2 | 30 | 20 | 0.5 | - |
| HT2844 *3 | - | - | - | - |
| Dyhard RU 100 *4 | - | - | - | 8 |
| Epicure 3010 *5 | - | - | - | 0.1 |
| High | 3 | 3 | 3 | 3 |
| Benzyl benzene alcohol | - | - | - | 7 |
| Be subjected to pulling force to allow time L (hrs) in the time of 90 ℃ | 7 | 12.5 | 1233 | 9 |
| Solidify required fate M (my god) | 22 | 37 | ＜1100 | 424 |
| Comprehensive evaluation | × | × | × | × |
*1: Resins, epoxy (product of Yuka Shell Epoxy Kabushikikaisha)
*2: ketoimine type wet type curing solidifying agent (product of Yuka Shell Epoxy Kabushikikaisha)
*3: potentiality solidifying agent (product of Asahi-CIBA Limited)
*4: potentiality solidifying agent (product of Nippon Carbide Industries Co.Ltd.)
*5: curing accelerator (product of Yuka Shell Epoxy Kabushikikaisha)
*6: thickening material (product of Nippon Aerosil Co.Ltd.)
Advantage of the present invention
According to the present invention, the curable compositions that provides a kind of reinforcing bar of prestressed concrete to use, it can prevent reinforcement corrosion fully, and needn't inject mortar by intracutaneous outside reinforcing bar, even produce heat during because of concrete hardening, also can use and be heated very high temperature. The reinforcing bar that also provides a kind of crust for prestressed concrete to clad according to the present invention, behind prestressed concrete, be subjected in the system of pulling force, do not need outside intracutaneous to inject mortar yet, and after the reinforcing bar tension, combine with concrete, can prevent from being corroded fully.
According to the invention provides a kind of curable compositions, it allows at high temperature compatible slow curing reaction, and has curing under the normal temperature, this point is former to be impossible, curable compositions that a kind of reinforcing bar of prestressed concrete uses and the reinforcing bar of crust cladding are provided thus, do not need in crust, to inject mortar, and can prevent corrosion fully, can use even the heat that produces because of concrete is heated to very high temperature with curable compositions yet.
Claims (19)
1. the curable compositions used of the reinforcing bar of a prestressed concrete, it is applied to the surface of the reinforcing bar of prestressed concrete, and described curable compositions comprises Resins, epoxy and wet type curing solidifying agent at least,
Wherein, be to represent to the scope of mixing the corresponding equivalents of wet type curing solidifying agent ratio, and satisfy 0.019≤P≤0.31 with the ratio (P) of the weight part that mixes wet type curing solidifying agent and the equivalent part of mixing,
Wherein, being subjected to pulling force to allow time L under 90 ℃ is to remain on 90 ℃ at curable compositions, needed time representation when the viscosity of measuring curable compositions under 25 ℃ reaches 10000 pools under the environment of 60% relative humidity, solidifying needed fate M at normal temperatures is to remain under 25 ℃ when curable compositions, use D type hardness tester meter hardness according to JIS K 7215 canonical measure curable compositions to reach 60 o'clock needed fates and represent, be subjected to pulling force to allow time L and solidify required fate M to satisfy following expression (1) and (2) represented corresponding relation:
L (hour) 〉=20 (1),
M (fate)≤1095 (2).
2. the curable compositions of using according to the reinforcing bar of the prestressed concrete of claim 1, wherein, Resins, epoxy is selected from a kind of liquid Resins, epoxy in bisphenol A type epoxy resin and the bisphenol f type epoxy resin at least.
3. the curable compositions of using according to the reinforcing bar of the prestressed concrete of claim 1, wherein, wet type curing solidifying agent is a ketimine compound.
4. the curable compositions of using according to the reinforcing bar of the prestressed concrete of claim 3, wherein, ketimine compound is that amine compound and carbonyl compound dewater-condensation reaction and the compound that forms.
5. the curable compositions of using according to the reinforcing bar of the prestressed concrete of claim 1, wherein, the ratio of contained wet type curing solidifying agent is to be the 1-16.5 weight part in per 100 parts by weight of epoxy resin.
6. the curable compositions of using according to the reinforcing bar of the prestressed concrete of claim 1 wherein further contains alcohol, phenol or its mixture.
7. the curable compositions of using according to the reinforcing bar of the prestressed concrete of claim 6, the ratio of wherein contained alcohol, phenol or its mixture is in per 100 weight part Resins, epoxy the 0.1-30 weight part to be arranged.
8. the curable compositions of using according to the reinforcing bar of the prestressed concrete of claim 6, the ratio of wherein contained wet type curing solidifying agent is to contain the 0.1-13 weight part in per 100 weight part Resins, epoxy.
9. the curable compositions of using according to the reinforcing bar of the prestressed concrete of claim 1 wherein further contains dewatering agent.
10. the curable compositions of using according to the reinforcing bar of the prestressed concrete of claim 9, wherein, dewatering agent is calcium oxide, water absorbent polymer, molecular sieve, silane coupling agent or its mixture.
11. according to the curable compositions that the reinforcing bar of the prestressed concrete of claim 9 is used, wherein, the ratio of contained dewatering agent is to be the 0.1-50 weight part in per 100 weight part Resins, epoxy.
12. the curable compositions according to the reinforcing bar of the prestressed concrete of claim 1 is used wherein further contains at least a curing auxiliary that is selected from curing accelerator and the potentiality solidifying agent.
13. according to the curable compositions that the reinforcing bar of the prestressed concrete of claim 12 is used, wherein, curing accelerator is tertiary amine compound, imidazolium compounds, BF
3Complex compound or its mixture.
14. according to the curable compositions that the reinforcing bar of the prestressed concrete of claim 12 is used, wherein the potentiality solidifying agent is Dyhard RU 100, two hydrazides, amine adduct, Diaminomaleonitrile or its mixture.
15. according to the curable compositions that the reinforcing bar of the prestressed concrete of claim 12 is used, wherein, the ratio of contained potentiality solidifying agent is for the weight epoxy that contains the heavy epoxide group of 1g equivalent, mostly is 10g most.
16. according to the curable compositions that the reinforcing bar of the prestressed concrete of claim 12 is used, wherein the ratio of contained curing accelerator is for the weight epoxy that contains the heavy epoxide group of 1g equivalent, mostly is 1g most.
17. the curable compositions according to the reinforcing bar of the prestressed concrete of claim 1 is used wherein further contains thickening material.
18. according to the curable compositions that the reinforcing bar of the prestressed concrete of claim 1 is used, it be applied to prestressed concrete reinforcing bar the surface curable compositions and clad with crust again.
19. the reinforcing bar of the crust of the prestressed concrete with following structure cladding, promptly, curable compositions is applied to the surface of reinforcing bar for prestressed concrete, its coated surface clads with crust again, wherein curable compositions contains Resins, epoxy and wet type curing solidifying agent at least, wherein the pulling force that is subjected under 90 ℃ allows time L, be when curable compositions is kept in the environment of 90 ℃ and 60% relative humidity, be used in needed time representation when 25 ℃ the viscosity of measurement curable compositions reaches 10000 pools down, solidify needed fate M at normal temperatures, it is to be kept under 25 ℃ when curable compositions, use D type hardness tester meter hardness according to JIS K 7215 canonical measure curable compositions to reach 60 o'clock needed fates and represent, be subjected to pulling force to allow time L and solidify required fate M to satisfy the corresponding relation shown in the expression (1) and (2) down
L (hour) 〉=20 (1)
M (fate)≤1095 (2).
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP167991/2000 | 2000-06-05 | ||
| JP2000167991 | 2000-06-05 | ||
| JP290674/2000 | 2000-09-25 | ||
| JP2000290674A JP3585819B2 (en) | 2000-06-05 | 2000-09-25 | Curable composition for prestressed concrete tendon and tendon |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1327019A CN1327019A (en) | 2001-12-19 |
| CN1174069C true CN1174069C (en) | 2004-11-03 |
Family
ID=26593338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011208082A Expired - Lifetime CN1174069C (en) | 2000-06-05 | 2001-05-30 | Solidifying composition for prestress concrete steel bar and steel bar |
Country Status (10)
| Country | Link |
|---|---|
| US (2) | US6623558B2 (en) |
| EP (1) | EP1162224B1 (en) |
| JP (1) | JP3585819B2 (en) |
| KR (1) | KR100463855B1 (en) |
| CN (1) | CN1174069C (en) |
| AT (1) | ATE347572T1 (en) |
| CA (1) | CA2349685C (en) |
| DE (1) | DE60124979T2 (en) |
| ES (1) | ES2277896T3 (en) |
| ID (1) | ID30421A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI336343B (en) | 2003-04-07 | 2011-01-21 | Huntsman Adv Mat Switzerland | Epoxy resin composition |
| JP4151573B2 (en) * | 2003-12-16 | 2008-09-17 | 東洋紡績株式会社 | Curable composition |
| JP4653690B2 (en) * | 2006-04-14 | 2011-03-16 | 住友電工スチールワイヤー株式会社 | Ground anchor structure and construction method |
| KR100855036B1 (en) * | 2006-10-25 | 2008-08-29 | 주식회사 일건건축사사무소 | A grout |
| CA2697961C (en) * | 2007-08-23 | 2015-12-29 | Sumitomo (Sei) Steel Wire Corp. | Powder coating composition for pc strand coating, coating method, and coating film |
| US20090075053A1 (en) * | 2007-09-19 | 2009-03-19 | Government Of The United States Of America, As | Concrete Having Increased Service Life and Method of Making |
| CN103320069A (en) * | 2013-05-15 | 2013-09-25 | 南京天力信科技实业有限公司 | Modified epoxy resin bar-planting glue suitable for wet environment |
| CN105176309B (en) * | 2015-10-10 | 2017-08-29 | 舜元建设(集团)有限公司 | A kind of coated reinforcement and preparation method thereof |
| CN105176394B (en) * | 2015-10-10 | 2017-10-17 | 舜元建设(集团)有限公司 | Coating material of organic-inorganic based on sol-gel technique and preparation method thereof |
| CN115160929B (en) * | 2022-08-09 | 2023-04-14 | 任丘市嘉华电讯器材有限公司 | Corrosion-resistant steel strand and preparation method thereof |
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| JPS5870864A (en) | 1981-10-21 | 1983-04-27 | Ohbayashigumi Ltd | Surface-treatment of concrete |
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| JPS63167836A (en) | 1986-12-28 | 1988-07-11 | 神鋼鋼線工業株式会社 | Tension material for prestressed concrete and use thereof |
| US5260355A (en) * | 1987-07-02 | 1993-11-09 | The Dow Chemical Company | Aqueous dispersion of cationic advanced diglycidyl ether blend |
| JPH0811791B2 (en) * | 1987-07-27 | 1996-02-07 | 神鋼鋼線工業株式会社 | Coating material for prestressed concrete tendons |
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-
2000
- 2000-09-25 JP JP2000290674A patent/JP3585819B2/en not_active Expired - Lifetime
-
2001
- 2001-05-30 CN CNB011208082A patent/CN1174069C/en not_active Expired - Lifetime
- 2001-06-02 KR KR10-2001-0030940A patent/KR100463855B1/en active IP Right Grant
- 2001-06-04 CA CA002349685A patent/CA2349685C/en not_active Expired - Lifetime
- 2001-06-05 DE DE60124979T patent/DE60124979T2/en not_active Expired - Lifetime
- 2001-06-05 EP EP01304920A patent/EP1162224B1/en not_active Expired - Lifetime
- 2001-06-05 ES ES01304920T patent/ES2277896T3/en not_active Expired - Lifetime
- 2001-06-05 AT AT01304920T patent/ATE347572T1/en active
- 2001-06-05 US US09/873,396 patent/US6623558B2/en not_active Expired - Lifetime
- 2001-06-05 ID IDP00200100440D patent/ID30421A/en unknown
-
2003
- 2003-08-21 US US10/644,751 patent/US20040044175A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| EP1162224B1 (en) | 2006-12-06 |
| ES2277896T3 (en) | 2007-08-01 |
| JP2002060465A (en) | 2002-02-26 |
| JP3585819B2 (en) | 2004-11-04 |
| US20020011190A1 (en) | 2002-01-31 |
| ID30421A (en) | 2001-12-06 |
| CA2349685A1 (en) | 2001-12-05 |
| CA2349685C (en) | 2006-02-07 |
| DE60124979T2 (en) | 2007-12-13 |
| EP1162224A2 (en) | 2001-12-12 |
| EP1162224A3 (en) | 2002-11-27 |
| DE60124979D1 (en) | 2007-01-18 |
| US20040044175A1 (en) | 2004-03-04 |
| US6623558B2 (en) | 2003-09-23 |
| ATE347572T1 (en) | 2006-12-15 |
| KR100463855B1 (en) | 2004-12-29 |
| CN1327019A (en) | 2001-12-19 |
| KR20020002208A (en) | 2002-01-09 |
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